Pulley-block.



F. BELT.

PULLEY BLOCK.

APPLICATION FILED IuLYs. I9II6. IIEIIEwED IIIAY 24.19I7.

Patented Oct. 2, 1917.

FRANZ BELT, GF VIENNA, AUSTRIA.

PULLEY-BLOCI/I.

Specication of Letters Patent.

Patented Oct. 2, 1917.

Application led July 6, 1916, Serial No. 107,762. Renewed May 24, 1917. Serial No. 170,780.

To all whom 'it may concern:

Be it known that I, FRANZ BELT, manufacturer, subject of the Emperor of Austria, residing at IV Karolinengasse 23, Vienna,

Austria, have invented certain new and useful Improvements in Pulley-Blocks, of which the following is a specification.

The present invention relates to pulley blocks and the object is to provide a block which can be easily made in masses and consequently will be cheaper to produce than hitherto. According to the presentinvention the parts forming the housing of the block are stamped or pressed of sheet metal and assembled and attached together as'and in the manner hereinafter particularly set forth.

In the accompanying drawing a pulley made according to the invention is illustrated in two modifications.

Figure'l is a sectional elevation of the improved block having four pulley wheels, Fig. 2 is a side elevation of Fig. l with the top part in section, Figs. 3 and 4 are similar views respectvelv of a block having a single pulley wheel. Figs. 5 and 6 are a plan view and central cross section respectively of the part of the housing made by stamping or pressing, of the block shown in Figs. 1 and 2 and Figs. 7 and 8 are similar views of the suspending parts of the block.

As illustrated in Figs. l and 2 the block consists of the housing member l in which the pulley wheels or rolls 2 are mounted in the known manner between partition disks 3. The housing proper consists of a pressed sheet metal body 4 of the form shown in Figs. 5 and 6 before it is bent into its final shape. The central part of the blank has its edges turned or folded around at 4 and is provided at its ends with holes 5 and 6 for the spindle 7 of the pulley wheels and the cross bolt or rivet 8 to which the e-nd of the rope is attached.

The suspending member 10 forms the other part of the block, this member also being stamped of sheet metal and having the form illustrated in Fig. 7 the edges of the same being folded around as illustrated at 11, 11 in Fig. 7. This part is also pro- Copies of this patent may be obtained for The pulley block thus formed is of great strength and very light construction.

The single pulley block illustrated in Figs. 3 and Il is made in the same manner.

I claim as my invention:-

1. A pulley block consisting of a sheet metal housing having depending members in and between which the axle for the pulleys is attached, the said members having their edges folded one over the other to form the upper bow of the pulley substantially as described.

2. A pulley block having a sheet metal housing consisting of depending side mem-l bers between which the rolls are mounted, a bow connecting the two depending members and having its edges turned upwardly and a second member having depending arms. to t over the said first member and downwardly bent edges at its bow part to engage those of the first member.

3. A pulley block having a sheet metal housing consisting of an inner member having Hat sides and a connecting bow part having upwardly turned edges and an outer member having flat sides to engage over the sides of the inner member and a connecting bow part between the two sides having downwardly turned edges to engage with the edges of the inner member and apivot to connect the two parts and support the pulley rolls substantially as described.

In testimony whereof I aiiix my signature in presence of two witnesses.

FRANZ BELT.

Witnesses:

ANTON MAREK, AUGUST FUGGER.

ve cents each, by addressing the "Commissioner of Batents, Washington, D. G. 

